Systemd tempfiles and locks, should the RPM not include a tmpfiles.d config?

See Backups don't work with 2.x and Site backup failed: Failed to perform backup: [Errno 104] Connection reset by peer. Maybe leave a comment there, as the tribe is already involved in the later thread.

Generally I think we all agree, that this should be delivered by Checkmk on installation and as this really got attention I think they implement that soon, unless there are good reasons not to.